如何查看上次密码修改时间
如何查看上次密码修改时间
在文件/etc/security/passwd中记录有每个用户登陆密码的形式,以及上次修改密码的时间,我们以root为例:
password = hVvR/QGnSNKlE
lastupdate =
此处,lastupdate为上次密码修改时间,以epoch time表示。Epoch time是从Epoch(新纪元时间,传说中的标志Unix时代开端的那个拂晓)开始计算起,单位为秒,Epoch则是指定为1970年一月一日凌晨零点零分零秒,格林威治时间。我们可以通过下面的命令来转换epoch time:
#perl -le 'print scalar localtime '
Tue Jan 22 06:09:14 2008
所以,root用户上次修改密码是在日上午06:09:14。
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